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GTK-XB90
GTK-XB90
26
26
5-4. SCHEMATIC DIAGRAM - MAIN Board (1/8) -
A
E
D
B
C
1
2
3
4
5
6
7
8
9
(1/8)
MAIN BOARD
F
Vout=0.8*(8.2/15+1)=1.24V
C3
0.
1uF/
50V/
X
7R
C3
0.
1uF/
50V/
X
7R
R29
100
R29
100
C37
470pF/50V/X7R
C37
470pF/50V/X7R
C13
470pF/50V/X7R
C13
470pF/50V/X7R
R75
100K
R75
100K
R2
200K
R2
200K
U15
U15
C
206
10uF/
6.
3V/
X
5R
C2
06
10uF/
6.
3V/
X5R
R43
100K
R43
100K
L18
2.2uH/3.4A
L18
2.2uH/3.4A
XP20
7PIN/2.0mm
XP20
7PIN/2.0mm
C2
8
1UF/
100V/
X
7R
C2
8
1UF/
100V/
X
7R
R72
200K
R72
200K
R19
12K/1%
R19
12K/1%
D1
SS34B 3A/40V
D1
SS34B 3A/40V
R207
1K
R207
1K
C30
0.1UF
C30
0.1UF
C6
10uF
C6
10uF
D5
BAT54C
D5
BAT54C
C26
0.1uF
C26
0.1uF
C109
N
C
/330pF/
50V/
X
7R
C109
N
C
/330pF/
50V/
X
7R
C29
0.1UF
C29
0.1UF
C
203
33pF/
50V/
N
P0
C
203
33pF/
50V/
N
P0
C19
0.1UF
C19
0.1UF
R203
4.7K
R203
4.7K
Q11
P_AP2305
Q11
P_AP2305
R7
4.
7K/
1%
R7
4.
7K/
1%
Q14
P_AP2305
Q14
P_AP2305
CE4
100uF/
16V
CE4
100uF/
16V
R206
1K
R206
1K
D9
SS34B 3A/40V
D9
SS34B 3A/40V
R840
100K
R840
100K
R841
10K
R841
10K
C22
0.1uF/50V/X7R
C22
0.1uF/50V/X7R
C2
3
0.1
uF
C
23
0.
1uF
D6
MBRX180/80V/1A
D6
MBRX180/80V/1A
R21
15K/1%
R21
15K/1%
C100
0.1UF
C100
0.1UF
R99
22K
R99
22K
FB5
0
FB5
0
C21
0.1UF
C21
0.1UF
220uF/
25V
CE7
220uF/
25V
CE7
R28
10K
R28
10K
R20
20K
R20
20K
R10
100K
R10
100K
C163
0.1UF
C163
0.1UF
R25
NC/56
R25
NC/56
R8
49.9K/1%
R8
49.9K/1%
Q3
PNP_3CG3906M
Q3
PNP_3CG3906M
C127
0.1UF
C127
0.1UF
R236
47K
R236
47K
Q226
PNP_3CG3906M
Q226
PNP_3CG3906M
CE3
100uF/
50V
CE3
100uF/
50V
C
32
0.
1uF/
16V/
X
7R
C
32
0.
1uF/
16V/
X
7R
R957
NC/10K
R957
NC/10K
R33
47K
R33
47K
R336
15K
R336
15K
Q4
NPN_3DG3904M
Q4
NPN_3DG3904M
R1
NC/200K
R1
NC/200K
R22
R22
C
399
100pF/
50V/
N
P0
C
399
100pF/
50V/
N
P0
R4
15
R4
15
R36
10K
R36
10K
R69
200K
R69
200K
C20
3300pF/
50V/
X
7R
C20
3300pF/
50V/
X
7R
L2
22uH-48uH
L2
22uH-48uH
R839
10K
R839
10K
C3
3
0.
1uF/
50V/
X
7R
C3
3
0.
1uF/
50V/
X
7R
C1
7
10uF/
6.
3V/
X
5R
C1
7
10uF/
6.
3V/
X5R
C48
10uF/
6.
3V/
X5R
C48
10uF/
6.
3V/
X5R
ZD1
ZMM12V/12V
ZD1
ZMM12V/12V
100uF/
16V
CE12
100uF/
16V
CE12
C
389
2.
2uF
C
389
2.
2uF
ZD
4
Z
M
M
5V
6/
5.
6V
ZD
4
Z
M
M
5V6/
5.
6V
Q18
NPN_3DG3904M
Q18
NPN_3DG3904M
U21
U21
R6
9.
1K/
1%
R6
9.
1K/
1%
U4
SGM203-2ADJ3
U4
SGM203-2ADJ3
C6
9
1UF/
100V/
X
7R
C6
9
1UF/
100V/
X
7R
C18
0.1uF/50V/X7R
C18
0.1uF/50V/X7R
C9
10uF
C9
10uF
R58
R58
C25
C25
C36
0.1uF
C36
0.1uF
R27
47K
R27
47K
C110
N
C
/330pF/
50V/
X
7R
C110
N
C
/330pF/
50V/
X
7R
220uF/
25V
CE5
220uF/
25V
CE5
Q17
NPN_3DG3904M
Q17
NPN_3DG3904M
C76
100pF/
5
0V/
N
P0
C76
100pF/
5
0V/
N
P0
R5
49.9K/1%
R5
49.9K/1%
C41
0.1UF
C41
0.1UF
C
31
0.
1uF
C
31
0.
1uF
U32
TLV62085
U32
TLV62085
C84
C84
R103
22K
R103
22K
C78
0.
1uF/
50V/
X
7R
C78
0.
1uF/
50V/
X
7R
R57
R57
R97
4.
7K/
1%
R97
4.
7K/
1%
1000pF/
50V/
X
7R
1000pF/
50V/
X
7R
R204
1K
R204
1K
L16
10uH
L16
10uH
R34
20K
R34
20K
C16
0.1UF
C16
0.1UF
R335
47K/1%
R335
47K/1%
FB2
0
FB2
0
U2
SGM203-2ADJ3
U2
SGM203-2ADJ3
Q13
P_AP2305
Q13
P_AP2305
R35
NC/56
R35
NC/56
R239
10K
R239
10K
R23
47K
R23
47K
C47
C47
C15
3300pF/
50V/
X
7R
C15
3300pF/
50V/
X
7R
CE15
100uF/
50V
CE15
100uF/
50V
TPS54240
TPS54240
++
++
++
++
TPS54240
TPS54240
++
++
POWER CONTROL 12V
POWER INPUT
STB_5V
ĺ
STB_3.3V
VOUT=0.8*(47+15)/15=3.3V
POWER CONTROL 3.3V
POWER CONTROL 3.3V
Vout=0.8*(1+15/12)=1.8V
3.3V
ĺ
1.8V
VOUT=0.8V*(1+49.9K/9.1K)=5.18V
Close to VIN
VOUT=0.8V*(1+49.9K/9.4K)=5.04V
Close to VIN
POWER CONTROL 5V
+12V
V_12V
STB_5V
STB_3.3V
STB_3.3V
3.3V_D1
STB_3.3V
3.3V_D2
3.3V_D1
1.8V_D
STB_5V
+12V
5V_D2
STB_5V
5V_D1
USB_5V
3.3V_D2
PW
PW_MAIN
PW_MAIN
1.2V_D
STB_5V
V_12V
1
2
3
4
5
6
7
8
9
10
11
12 13 14
15 16
1
2
3
4
5
6
7
1
3
2
15K
15K
1
2
3
1
2
3
4
5
6
7
8
9
10
11
12 13 14
15 16
1
4
3
5
2
10K
10K
10UF/6.3V/X5R
10UF/6.3V/X5R
1
7
6
3
5
4
2
0.1UF
0.1UF
8.2K/1%
8.2K/1%
1
4
3
5
2
10UF/6.3V/X5R
10UF/6.3V/X5R
3.3V_D1_EN
3.3V_D1_EN
POWER_EN
5V_D1_EN
5V_D1_EN
3.3V_D2_EN
POWER_EN1
5V_D2_EN
POWER_EN
BOOT
VIN
EN
SS/TR
RT/CLC
PWRGD
VSNS
COMP
GND
PH
PwPG
GND GND GND
GND GND
1
2
3
4
5
6
7
G
D
S
G
D
S
BOOT
VIN
EN
SS/TR
RT/CLC
PWRGD
VSNS
COMP
GND
PH
PwPG
GND GND GND
GND GND
VIN
ADJ/SENSE
EN
VOUT
GND
EN
VIN
SW
FB
GND
VOS
PG
VIN
ADJ/SENSE
EN
VOUT
GND
G
D
S
C391
C391
close to LDO
SYS SET
2020/08/20 22:42:53 (GMT+09:00)